Google Talk

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"Google Chat" redirects here. For the Google Video and Voice Chat phone service, see Google Voice.

Google Talk

Screenshot of Google Talk
Developer(s)	Google Inc.
Initial release	24 August 2005 (2005-08-24)
Stable release	1.0.0.105  (21 November 2007; 4 years ago (2007-11-21)) [±]
Preview release	Google Talk, Labs Edition [±]
Operating system	Android, BlackBerry OS, Linux, Maemo, webOS, Symbian, iOS (webapp), Windows, Google Chrome OS
Available in	English, German, French, Italian, Japanese, Korean, Dutch, Polish, Portuguese, Russian, Turkish, Chinese, Spanish
Type	VoIP/instant messaging client
License	Proprietary
Website	www.google.com/talk www.google.com/talk/labsedition talkgadget.google.com/talkgadget/popout

Google Talk is an instant messaging service that provides both text and voice communication.^[1][2] The instant messaging service is colloquially known as "gchat" to its users, although Google does not endorse this name.^[3]
Google Talk is also the name of the client applications offered by Google to access the service. Google Talk applications are available for Microsoft Windows^[1] (XP, Server 2003, Vista, and Windows 7), Android,^[4] Blackberry,^[5] and Google Chrome OS operating systems.^[6]
Because the Google Talk servers communicate with clients using an open protocol, XMPP, the service can also be accessed using any other client that supports XMPP. Such clients are available for a number of operating systems not supported by the Google Talk client.^[1]
VoIP in Google Talk uses an older version of what became the Jingle protocol. The technology used within the Google server network, however, is not publicly known.